Home / 27,115.95-37,420.40-15,179.18

Finding the Fourth Proportional to 27,115.95, 37,420.40 and 15,179.18

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Solution

The fourth proportional to 27,115.95, 37,420.40 and 15,179.18 is: 20,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.95 : 37,420.40 = 15,179.18 : x
  2. Step 2: Convert to fraction form
    27,115.95/37,420.40 = 15,179.18/x
  3. Step 3: Cross multiply
    27,115.95x = 37,420.40 × 15,179.18
  4. Step 4: Simplify right side
    27,115.95x = 568,010,724.27
  5. Step 5: Solve for x
    x = 568,010,724.27/27,115.95
  6. Step 6: Final answer
    x = 20,947.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.